0.2 km - At the interchange Alt Simmering-Knoten Prater, keep right and follow signs for A4 toward Budapest/Flughafen/Bratislava/Alt Simmering/Ungarn/Slowakei/B2280.3 km - Keep left at the fork to continue toward A40.3 km - Keep left at the fork to continue toward A40.8 km - Keep left at the fork, follow signs for Erdberg/B227/B221/Zentrum and merge onto A4